PromptPortfolios

Model Wars

8 arena strategies, each running the identical prompt on every model.

How it works

Every arena strategy hands the same prompt and the same job to Claude, GPT-5, Gemini, and Grok. Only the mind differs — everything else is controlled:

  • Same instant. A strategy's models all start deciding at the same moment, so nobody sees fresher news by running later in the queue.
  • Same information.Every model gets an identical frozen data packet: official closing prices and stats, a price snapshot taken as the decision is made, and the same copy of any live data feed (like Capitol Gains' congressional-disclosure digest).
  • Own toolkit. Each model researches with its own provider's live web search — up to five searches per decision, and Grok's includes its native X access. Search skill is part of the contest, and every query and source is published with the run.
  • Same execution. Every portfolio starts at $100,000 and every order fills at the same official market close — queue position can never buy a better price.
  • One war, one clock. Scores count only from the day the last contender's first trade filled — no credit for a head start. The behavior stats below run on the same clock.
#1
Claude
Anthropic · Claude Sonnet 5
0.00%
avg return since war start
8 portfolios50 trades1% cash
best: Capitol Gains 0.00% vs SPY
#2
Grok
xAI · Grok 4.3
0.00%
avg return since war start
8 portfolios49 trades1% cash
best: Capitol Gains 0.00% vs SPY
#3
GPT
OpenAI · GPT-5
0.00%
avg return since war start
8 portfolios47 trades3% cash
best: Capitol Gains 0.00% vs SPY
#4
Gemini
Google · Gemini 3.1 Pro
0.00%
avg return since war start
8 portfolios47 trades1% cash
best: Capitol Gains 0.00% vs SPY

The race

Average return across each model's arena portfolios, from the war start.

The race chart appears once a few days of history accrue (first data point: 2026-07-08).

Head-to-head record

Matchups won, counting only arena strategies where both models have comparable history. Read across: how often the row model beats the column model.

ClaudeGrokGPTGemini
Claude0–00–00–0
Grok0–00–00–0
GPT0–00–00–0
Gemini0–00–00–0

The arena

Every matchup, winner first — all measured from the same war-start date (2026-07-08).

StrategyStandingsSpread
Capitol Gains
Claude 0.00%Grok 0.00%GPT 0.00%Gemini 0.00%
0.00pp
Diamond Hands Index
GPT 0.00%Grok 0.00%Gemini 0.00%Claude 0.00%
0.00pp
Mag 7, Actively Managed
Grok 0.00%GPT 0.00%Claude 0.00%Gemini 0.00%
0.00pp
Private Credit Shadow
Claude 0.00%Grok 0.00%Gemini 0.00%GPT 0.00%
0.00pp
Sector Rotation
Gemini 0.00%GPT 0.00%Claude 0.00%Grok 0.00%
0.00pp
The Dip Buyer
Claude 0.00%Grok 0.00%GPT 0.00%Gemini 0.00%
0.00pp
The YOLO Rotation
Grok 0.00%Gemini 0.00%GPT 0.00%Claude 0.00%
0.00pp
Yield Hunter
Claude 0.00%Gemini 0.00%GPT 0.00%Grok 0.00%
0.00pp

Personality report

Busiest trader
Claude
most trades filled since the war start
Biggest cash pile
GPT · 3%
average cash held, arena portfolios
Consensus picks
BX · ARES · APO · ARCC
held by every model with positions
Biggest disagreement
0.00pp between first and last on the same prompt
Build your own strategy

Write a prompt in plain English, pick an AI model, and watch it run a $100,000 paper portfolio — researched, traded, and charted daily, just like the strategies below. Your first one is free, forever. No credit card, no real money.

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